Microwave curing of carbon nanotube/epoxy adhesives

In this paper we have shown that using microwave to cure epoxy adhesive containing multi-wall carbon nanotubes (MWNTs) not only leads to large time and energy savings, but also results in much higher strength. The well-dispersed MWNTs in the epoxy resin absorb microwave energy, acting as heat source...

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Veröffentlicht in:	Composites science and technology 2014-11, Vol.104, p.97-103
Hauptverfasser:	Sung, Ping-Cheng, Chiu, Tzu-Huan, Chang, Shih-Chin
Format:	Artikel
Sprache:	eng
Schlagworte:	A. Adhesive joints A. Carbon nanotube A. Polymer–matrix composites Adhesives Applied sciences B. Mechanical properties Composites Cures Curing E. Microwave processing Energy conservation Epoxy resins Exact sciences and technology Forms of application and semi-finished materials Heating Microwaves Multi wall carbon nanotubes Polymer industry, paints, wood Technology of polymers
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Beschreibung
Zusammenfassung:	In this paper we have shown that using microwave to cure epoxy adhesive containing multi-wall carbon nanotubes (MWNTs) not only leads to large time and energy savings, but also results in much higher strength. The well-dispersed MWNTs in the epoxy resin absorb microwave energy, acting as heat sources to cure the epoxy resin uniformly and effectively. Microwave curing can diminish the deterioration effect of lowering cross-link reaction by MWNTs as observed in conventional heating. Thus, as much as three times addition of MWNTs in the epoxy is allowed for optimum strength. As a result, 56% increase of the shear strength was observed when the epoxy adhesive doped with 3wt% MWNTs was cured by microwave heating.
ISSN:	0266-3538 1879-1050
DOI:	10.1016/j.compscitech.2014.09.003